Ethylphosphonic Acid

Ethylphosphonic Acid structural formula

CAS Number 6779-09-5
Molecular Formula C2H7O3P
Molecular Weight 110.050 g/mol
InChI Key GATNOFPXSDHULC-UHFFFAOYSA-N
LogP -0.772
Synonyms
  • Ethylphosphonic acid
  • Phosphonic acid, ethyl-
  • 6779-09-5
  • EINECS 229-839-2
  • Ethylphosphonate

Applications:


HPLC Separation of Methylphosphonic Acid and Related Products
Alkylphosphonic acids are decomposition byproducts of chemical warfare agents. Analysis of phosphonic acid in water is regulated by Environmental Protection Agency (EPA). All phosphonic acids are polar acidic compounds. Analysis for retention and separation of methylphosphonic, ethylphosphonic, ethyl methylphosphonic and isopropyl methylphosphonic acids was developed using Primesep SB reversed-phase anion-exchange column. Method is compatible with LC/MS and can be used for quantitation of phosphonic acid in water.

Condition

Column Primesep SB, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN
Buffer AmAc
Flow Rate 1.0 ml/min
Detection ELSD
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Description

Class of Compounds  Acid,  Hydrophilic, Ionizable
Analyzing Compounds Methylphosphonic, Ethylphosphonic, Ethyl methylphosphonic, Isopropyl methylphosphonic acids


Application Analytes:

Ethyl Methylphosphonic Acid
Ethylphosphonic Acid
Isopropyl Methylphosphonic Acid
Methylphosphonic Acid

Effect of pH on Separation of Glyphosate and Ethylphosphonic Acid
chr_295.gif Glyphosate is broad spectrum herbicide to kill weeds. Presence of glyphosate in water, fruits and veggies is regulated. Alkylphosphonic acids are decomposition byproducts of chemical warfare agents. Analysis of phosphonic acid in water is regulated by Environmental Protection Agency (EPA). All phosphonic acids are polar acidic compounds. Method was developed for glyphosate and ethylphosphonic acid. Both compounds are retained by ion-exchange mechanism. Method is compatible with LC/MS and can be used for analysis of glyphosate and alkylphosphonic acids in various matrices.  

Condition

Column Obelisc R, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN - 10%
Buffer AmAc
Flow Rate 1.0 ml/min
Detection ELSD 50C
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Description

Class of Compounds  Insecticide, Herbicide, Fungicide,  Hydrophobic, Ionizable
Analyzing Compounds Glyphosate, Ethylphosphonic acid


Application Analytes:

Ethylphosphonic Acid
Glyphosate

HPLC Separation of Ethylphosphonic, Methylphosphonic, Methylenediphosphonic and Phosphoric Acids on Newcrom B Column
HPLC.cloud View on hplc.cloud HPLC Separation of Ethylphosphonic, Methylphosphonic, Methylenediphosphonic and Phosphoric acids on Newcrom B Column_1201  

Condition

Column Newcrom B, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O - 20/78%
Buffer Formic Acid - 2%
Flow Rate 1.0 ml/min
Detection CAD

Description

Class of Compounds Acids, Hydrophilic, Ionizable
Analyzing Compounds Ethylphosphonic acid,                      Phosphoric, Methylphosphonic Acid, Methylenediphosphonic acid


Application Analytes:

Ethylphosphonic Acid
Methylenediphosphonic acid
Methylphosphonic Acid
Phosphate
Phosphoric Acid

HPLC Separation of Glyphosate, Ethylphosphonic Acid and Methylphosphonic Acid on Newcrom B Column
HPLC Separation of Glyphosate, Ethylphosphonic Acid and Methylphosphonic Acid on Newcrom B Column_1203

Condition

Column Newcrom B, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O - 40/59%
Buffer Formic Acid - 1%
Flow Rate 1.0 ml/min
Detection CAD

Description

Class of Compounds Ions, Hydrophilic, Ionizable
Analyzing Compounds Ethylphosphonic acid,                      Phosphoric Acid, Methylphosphoric Acid, Glyphosate


Application Analytes:

Ethylphosphonic Acid
Glyphosate
Methylphosphonic Acid
Phosphate

HPLC Separation of Glyphosate, Glyphosine, Ethylphosphonic, Methylphosphonic, Methylenediphosphonic and Phosphoric Acids on Newcrom B Column
HPLC.cloud View on hplc.cloud  

Condition

Column Newcrom B, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN Gradient  -40-10%, 15 min
Buffer Formic Acid Gradient  -1- 5%, 15 min
Flow Rate 1.0 ml/min
Detection CAD
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Description

Class of Compounds Acids, Plant growth regulator, Herbicide, Hydrophilic, Ionizable
Analyzing Compounds Ethylphosphonic acid,                      Phosphate Ion, Methylphosphonate, Methylenediphosphonic acid, Glyphosate, Glyphosine


Application Analytes:

Ethylphosphonic Acid
Glyphosate
Glyphosine
Methylenediphosphonic acid
Methylphosphonic Acid
Phosphate
Phosphoric Acid